Improvement in milk-coolers



n 2 Shee'cs---Sheetl'l N. W. MILLER.

Improvement in Milk-Coolers.

N0. 126,553, Patented May 7,1872.

.QU M 13 f il l f CL o 0 6l f 'J o C S G f f x f lp 'P `0 0 t i *x M x j2 Shen-sts--Sheetl 2 N. W. MILLER.

Improvement in Milk-Coolers.

No. 126,563. Patented May 7,1872.

' v 1 mi.:

Inman/livr,

' i @AM/4% L UNITED STATES PATENT OFFICE IMPROVEMENT IN MILK-COOLERS.

Specification forming part of Letters Patent No. 126,563, dated May 7,1872.

To all lwhom it may concern:

Be it known that I, NORTON W. MILLER, of East Randolph, in the county ofCattaraugus and in the State of New York, have invented certain new anduseful Improvements in Milk-Coolers; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing making a part of thisspecification, in which- Figure 1 is a plan view of the upper side of myimproved device. Fig. 2 is a side elevation of the same. Fig. 3 is avertical longitudinal section on line c a' of Fig. 1, and Fig. 4 is aside elevation of said device when not in use.

Letters of like name and kind refer to like parts in each ofthe figures.

The object of my invention is the production of a means whereby thetemperature of milk, when in store, may be easily controlled; and itconsists, principally, in the means employed for connecting together themilk and water vats, substantially as and for the purpose hereinafterspeciiied. It consists, further, in the construction and combination ofthe sectional supporting-frame, substantially as and for the purposehereinafter shown. It consists, finally, in the relative arrangement ofthe cooling-vats and Waste-water reservoir, substantially as and for thepurpose hereinafter shown and described.

In the annexed drawing, .A and A represent two side rails, connectedtogether at their ends by means of two end rails, B and B, and at theirlongitudinal centers by means of a cross-rail, C, and supported in ahorizontal position by means of four legs, D, secured within andextending downward from the corners of the frame. Upon one side the endrails B extend outward beyond the side rail A, and, when the frame thusconstructed is placed against a like frame, correspond to and coincidewith the proj ectin g end rails of said second frame. A hook, E, pivotedto or upon the inner face of the pro- ,jecting' end of each end rail ofone section, en-

gages with a staple, c, attached to the correspending portion of thecontiguous rail of the opposite section, and secures said parts rmlytogether. Resting within each section of the frame are two vats, F,which correspond in size and shape to the open spaces upon each side ofthe center cross-bar, and are provided with horizontally-projectingiianges f, that rest upon the upper side of said frame and furnish asupport for said vats. A second vat, G, constructed like the rst, buthaving somewhat smaller dimensions, is placed within each vat F, and, bymeans of horizontally-projecting side iianges g, which extend over andrest upon the sides of said lower vat, is held in such position as toform a space between their sides, ends, and bottoms. The vats thusconstructed and combined are secured together by means of a nut, H,secured upon the lower side of the upper vat G and extending downward tothe bottom of the lower vat F,through which passes a hollow sleeve, I,threaded exteriorly so as to fit into said nut and provided with an enlarged portion, I', which terminates in arightangled shoulder, i. Arubber gasket or washer, K, placed over the threaded portion of thesleeve and upon the shoulder t' bears against the lower side of the vatF, and, when said sleeve is screwed upward to place, presses saidvat-bottom so firmly against the lower end of the nut as to form awater-tight joint between said parts. An opening, h, corresponding inposition and size to the interior of the nut H, is provided in andthrough the bottom of the vat G, and permits the contents of the same tobe discharged, through the hollow sleeve I, into a pipe, L, the upperend of which fits over said sleeve and is attached to or upon the lowerside of the lower vat by means of a hook, l, pivoted upon said pipe andengaging with an eye or staple secured upon the vat. It is intended thatthe inner vats shall contain milk, while the outer or inclosingfvats arefor the purpose of containing water with which to regulate thetemperature of said milk; and, as it is necessary that said water shouldtirst be tempered and then caused to change continually within its vat,the following-described means are employed for effecting such results:Resting upon and supported by a cross-bar, M, which, in turn, rests uponthe central portion of the frame, is a waterreservoir composed of anouter and an inner shell, N and N', respectively, between the sides andbottom of which is left a space that is filled with a suitablenonconductor of heat. Extending outward through the sides of thereservoir, at a point over the transverse center of each vat, is aspigot, O, the open end of which turns downward so as to cause a streamof water from said reservoir to pass into the open end of a pipe, P,which pipe extends downward te the bottom of the milk-vat, along thesame to its opposite end, from thence over said end and downward intothe space between said vat and the water-vat, into which space saidwater is discharged. Attached to the inner end of each water-vat is apipe, Q, which, extending vertically downward along the outer faces ofthe same, has communication with the interior of said vat through asmall opening, q, at the lower corner of the same, which opening has acapacity equal to about one-third the quantity of water that is to passthrough said vat. A second or overtlow opening, q', is provided in thepipe Q at or near the upper edge of the vat, so as to permit the escapetherefrom of all water which is unable to pass from or through the loweropening. Immediately beneath the vats and frame is placed a waste-waterreservoir, R, which has a suflicient size to enable it to receive thewater from all of the vats, and is supported in position by means of arectangular frame, S, which rests upon the door. A discharge-pipe, T,extending downward from the lower side of the reservoir R, completes thesame, which, in connection with the hereinbetore-descrbed waterapparatus, is used as follows: Water is supplied to the reservoir N andits temperature regulated by the application of heat or by placing icewithin said water. Upon opening the spigots the water passes into andthrough the pipes P, and is discharged into the space between the milkand water vats, having during such passage subtracted from or added tothe milk a certain amount of heat, after which said water escapes intothe waste-water reservoir, from whence it can either be pumped back intothe tempering-reservoir to be again used or can be permitted to escape.It is designed that a thermometer, U, shall be placed within a corner ofeach vat, so as to more readily show the temperature of its contents.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1. In combination with the water and milk vats F and G,respectively, the threaded nut H, threaded sleeve I and I', and therubber gasket K, substantially as and for the purpose specified.

2. The supporting-frame, constructed in sections and combined, in themanner and for the purpose substantially as shown.

3. The relative arrangement of the coolingvats and waste-waterreservoir, substantially as and for the purpose shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this4th day of April, 1872.

NORTON W. MILLER. Witnesses:

AUGUSTINE D. HoLT, WALTER S. JENKINS.

